PKG_LIBS_ONLY_LIBNAME
{ "libs-only-l", no_argument, &want_flags, PKG_LIBS_ONLY_LIBNAME|PKG_PRINT_ERRORS, },
case 'l': got_flags = PKG_LIBS_ONLY_LIBNAME; break;
#define PKG_LIBS (PKG_LIBS_ONLY_LDPATH|PKG_LIBS_ONLY_LIBNAME|PKG_LIBS_ONLY_OTHER)